This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACEJ20X175-100S, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S
The AirTAC ACPJ Adjustable Compact Cylinder ACPJ20X175-100S is a double acting, double rod, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 175mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X175-100S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke175 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X175-100S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S
This discontinued ACPJ20X175-100S is a double acting compact cylinder with a 100 mm adjustment window: a stop screw trims the 175 mm extend stroke down to as short as 75 mm on site. The 175 mm stroke is longer than the 100 mm standard maximum for this bore, so it is a made-to-order build.
The hard-anodized aluminium body with an S45C hard-chrome rod saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which helps when a 175 mm reach must fit inside a tight guard or fixture. Plan on about 94 N (roughly 9.6 kg) of usable push at 0.5 MPa rather than the full rating. The -S code on this model carries the optional magnet, so CMSE / DMSE switches can be added. For new projects, order the current-production ACEJ20X175 and confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X175-100S |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ20X175-100S (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 kgf |
ACPJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -100 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S Is Used
Injection-mould gate trimming
A 75-175 mm adjustable push ejects trimmed sprue gates from a small mould fixture, with the stop screw set per part number.
Indexed fixture clamping
CMSE switches on the fitted magnet confirm full clamp on a machining fixture, while the 100 mm window adapts one cylinder to several part sizes.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S with the ACEJ20X175-100S
At 0.5 MPa this 20 mm bore pushes 157.1 N; step down to a 16 mm bore for 100.5 N or up to a 25 mm class bore when you need more margin, and check the pull figure (117.8 N here) on retraction-heavy moves. The stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod can still drift if air is lost. FA/FB flange or LB foot mounting suits fixed jigs, and the fitted -S magnet accepts CMSE / DMSE switches. This model is discontinued; the ACEJ20X175 is the direct successor in the same bore, stroke and force class.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X175-100S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X175-100S FAQ
The -100 code gives a 100 mm adjustment window, so the stop screw trims the 175 mm extend stroke anywhere down to 75 mm. It runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um at 30-500 mm/s.
The short ISO 21287-class body with a fixed TPU bumper at each end saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange or LB foot mounts bolt to standard fixtures. The ACPJ family is discontinued; the current-production ACEJ20X175 is the direct successor in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X175-100S
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X175-100S replacement — usually within 7-8 hours.